OVERVIEW: Fuse cards into other cards with a Fusion Spell card!
CARD LOCATION: Extra Deck[Monster], Main Deck[Spell]
MATERIALS: 2+ monsters and a Spell (usually Polymerization) [M + M + S = F]
DEBUT WORLD: DM
OTHER NOTES: again pretty costly but honestly the GY isnt the worst place for cards to be in any more. also i hate Hero decks, all of them.
EXTRA: heres some cards